Question

1 A boy and a girl stand 200 m. apart beside a long metal fence on a still
day. The girl places her ear against the fence while the boy strikes the
fence with a hammer. Two sounds separated by a time interval of 0.5
seconds, are heard by the girl. If the velocity of sound in air is 340 m/s
find the velocity of sound in the metal.
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Answer 1

Answer:

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Answer 2

Answer:

answer will be 2266.7meter/second